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水质组成 | |
tech. | water quality constituent |
P物质 | |
sport. med. | substance P |
物 质 | |
econ. | substance |
物质 | |
anim.husb. | material |
econ. | makeup |
hydroel.st. | substance; matter; mass; species |
life.sc. | substantia |
| |||
water quality constituent |
水质组成: 2 phrases in 1 subject |
Technology | 2 |